Magician Brothers Syd and Lid

Mahou tsukai Syd & Lid Series

From Storm in Heaven:
Magicians, people with magical powers that have caused their kind to be hated and feared throughout the centuries. This manga contains their tales -- of magic for both good and evil, the struggle to fit into society, and a dark past that haunts them both.
The series includes:
vol1. Romanesque Variee
vol2. Mystic Variee
vol3. Classical Variee
vol4. Sweet Variee
vol5. Silouette Variee
vol6. Crescent Variee
vol7. Secret Variee